netdev - Re: [PATCH] bonding: Fix corrupted queue

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Date:	Fri, 08 Jun 2012 09:46:37 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	therbert@...gle.com, netdev@...r.kernel.org
Subject: Re: [PATCH] bonding: Fix corrupted queue_mapping

On Fri, 2012-06-08 at 09:24 +0200, Eric Dumazet wrote:

> 
> I must say I dont understand dev_pick_tx() anymore.
> 
> It seems to ignore skb->queue_mapping (unless device provides its own
> ndo_select_queue() and this functions is aware of skb->queue_mapping, as
> correctly done in ixgbe)
> 
> So commit fff3269907897ee (tcp: reflect SYN queue_mapping into SYNACK
> packets) works on ixgbe, but probably not on other multiqueue devices.
> 
> This sounds like a regression to me.

Oh well, its done in skb_tx_hash(), after a few indirections, and if
skb->sk is NULL.

Which happens to be true in net-next for SYNACKS after commit
90ba9b1986b5ac (tcp: tcp_make_synack() can use alloc_skb())



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